[prev in list] [next in list] [prev in thread] [next in thread] 

List:       r-sig-finance
Subject:    Re: [R-SIG-Finance] How to use RDCOMClient (RBloomberg 0.1-11)
From:       Ana Nelson <nelson.ana () gmail ! com>
Date:       2010-05-31 10:27:58
Message-ID: 27492033.441275301673744.JavaMail.ana () Ana-Nelsons-MacBook ! local
[Download RAW message or body]

Hi, Thomas,

Many thanks for looking into this in such detail. I will pass this suggestion on to \
the maintainers of RDCOMClient.

There is a newer version of RBloomberg using the Java API available at findata.org, \
which will soon be the default version of RBloomberg.

Regards,
Ana



----- Original Message -----
From: "schubert" <schubert74@gmx.net>
To: r-sig-finance@stat.math.ethz.ch
Sent: Friday, 28 May, 2010 18:38:10 GMT +00:00 GMT Britain, Ireland, Portugal
Subject: [R-SIG-Finance] How to use RDCOMClient (RBloomberg 0.1-11) without Admin \
rights

I'm using RBloomberg since November on a Windows XP machine and it works 
very well. Now I had to install it on another Bloomberg machine which 
has the same hard- and software installation. But every time I tried to 
connect to Bloomberg over COM Api (RDCOMClient) - RGUI crashed. After 
searching a lot in the internet I found that a lot of people have 
problems to use RBloomberg (version with RDCOMClient) without 
administrator rights. Funny – because the user on the pc were the 
download worked also had no admin rights. Therefore I tested a lot with 
RDCOMClient and the Excel Examples and came to the conclusion that the 
problem isn't a RBloomberg Problem – it's only a problem with the 
RDCOMclient.


The problem can be tested with these lines of code (part of test2.R from 
RDCOMClient):

library(RDCOMClient)
xl <- COMCreate("Excel.Application")
xl[["Visible"]] <- TRUE # here - RGUI crashes!


RGUI.exe crashes after using/accessing a COM Object which was already 
created. Why?

After searching a lot in different forums and giving access-rights to 
the different directories (like R, RDCOMClient, Bloomberg/API) I didn't 
came to a solution.

Only when I tried to read the source code of RDCOM-Client I discovered 
something strange. In some errorcase a log-file "RDCOM.err" will be 
created directly in the root directory of C:\

The Problem is that in most companies normal users do not have access 
rights to the root directory of C:\ and so the error log file can not be 
written (if it isn't created) or changed (append with new text). In this 
case – RGUI crashes.

If an admin creates this file (if it doesn't exists) and give the user 
full access (read, write, change) to this file, the RDCOMClient will 
work – at least it worked on my pc.

A better solution would be to change the source code of RDCOMClient in 
COMError.cpp – and change there the path from C:\\RDCOM.err to a 
location where the user is allowed to write/change files . e.g. a user 
directory.

I hope I can help other users with this information to use this great 
library on pc's without admin rights.

Best regards
Thomas Schubert

PS: By the way - c:\RDCOM.err can get very very huge..

_______________________________________________
R-SIG-Finance@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-sig-finance
-- Subscriber-posting only. If you want to post, subscribe first.
-- Also note that this is not the r-help list where general R questions should go.

_______________________________________________
R-SIG-Finance@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-sig-finance
-- Subscriber-posting only. If you want to post, subscribe first.
-- Also note that this is not the r-help list where general R questions should go.


[prev in list] [next in list] [prev in thread] [next in thread]